Sodium Bicarbonate → HCID 66558206, compound

Participants

Reaction Steps

A mixture of 4-bromo-2-chloro-N-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)benzenesulfonamide (Intermediate 10) (0.0740 g, 0.279 mmol), 6-chloro-4-(tetrahydro-2H-pyran-4-yloxy)pyrido[3,2-d]pyrimidine (Intermediate 1) (0.145 g, 0.306 mmol), 1N aq. sodium bicarbonate (0.557 ml, 0.557 mmol) and PdCl2(dppf)-CH2Cl2 (0.0230 g, 0.0280 mmol) in dioxane (1.40 ml) was subjected to microwave irradiation for 1 hour at 110° C., and cooled to room temperature. The reaction mixture was filtered through a Celite pad and washed with DCM. The combined organic layers were washed brine, dried over anhydrous MgSO4, filtered and concentrated in vacuo. The residue was purified by column chromatography on SiO2 (Hex:EtOAc=1:1) to give 4-bromo-2-chloro-N-(5-(4-(tetrahydro-2H-pyran-4-yloxy)pyrido[3,2-d]pyrimidin-6-yl)pyridin-3-yl)benzenesulfonamide (0.032 g, 20%) as a yellow solid. 1H-NMR (CDCl3, Varian 400 MHz) δ 2.04-2.12 (2H, m), 2.23-2.27 (2H, m), 3.68-3.74 (2H, m), 4.10-4.15 (2H, m), 5.63-5.69 (1H, m), 7.83 (1H, t, J=2.2 Hz), 7.92 (1H, brs), 8.13-8.16 (1H, m), 8.22 (1H, d, J=8.0 Hz), 8.34-8.42 (4H, m), 8.84 (1H, s). m/z=577.9 [M+1]+.

Provenance & Evidence